<!doctype html>
<html lang="zh-CN">
<head>

    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    
    <meta name="referrer" content="no-referrer-when-downgrade">
    

    <title>计算平均数 | 早起的年轻人</title>
    <meta property="og:title" content="计算平均数 - 早起的年轻人">
    <meta property="og:type" content="article">
        
    <meta property="article:published_time" content='2021-08-30T16:46:23&#43;08:00'>
        
        
    <meta property="article:modified_time" content='2021-08-30T16:46:23&#43;08:00'>
        
    <meta name="Keywords" content="Flutter，golang,go语言,go语言笔记,飞雪无情,java,android,博客,项目管理,python,软件架构,公众号,小程序">
    <meta name="description" content="计算平均数">
        
    <meta name="author" content="luckly">
    <meta property="og:url" content="https://luckly.work/post/dart/%E8%AE%A1%E7%AE%97%E5%B9%B3%E5%9D%87%E6%95%B0/">
    <link rel="shortcut icon" href='/favicon.ico'  type="image/x-icon">

    <link rel="stylesheet" href='/css/normalize.css'>
    <link rel="stylesheet" href='/css/style.css'>
    <script type="text/javascript" src="//cdn.bootcdn.net/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

    
    
    
        <link href="https://cdn.bootcdn.net/ajax/libs/fancybox/3.5.7/jquery.fancybox.min.css" rel="stylesheet">
    
    
    
    
        <link rel="stylesheet" href='/css/douban.css'>
    
        <link rel="stylesheet" href='/css/other.css'>
    
</head>

<link rel="stylesheet"
      href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.2.0/styles/default.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/11.2.0/highlight.min.js"></script>
<body>
    <header id="header" class="clearfix">
    <div class="container">
        <div class="col-group">
            <div class="site-name ">
                
                    <a id="logo" href="https://luckly.work/">
                        早起的年轻人
                    </a>
                
                <p class="description">专注于Flutter、Android、Java、Go语言(golang)、移动互联网、项目管理、软件架构</p>
            </div>
            <div>
                <nav id="nav-menu" class="clearfix">
                    <a class="current" href="https://luckly.work/">首页</a>
                    
                    <a  href="https://luckly.work/categories/" title="分类">分类</a>
                    
                    <a  href="https://luckly.work/tags/" title="标签">标签</a>
                    
                    <a  href="https://luckly.work/archives/" title="归档">归档</a>
                    
                    <a  href="https://luckly.work/about/" title="关于我">关于我</a>
                    
                    <a  href="https://github.com/ITmxs/" title="github">github</a>
                    
                </nav>
            </div>
        </div>
    </div>
</header>

    <div id="body">
        <div class="container">
            <div class="col-group">

                <div class="col-8" id="main">
                    
<div class="res-cons">
    <style type="text/css">
    .post-toc {
        position: fixed;
        width: 200px;
        margin-left: -210px;
        padding: 5px 10px;
        font-family: Athelas, STHeiti, Microsoft Yahei, serif;
        font-size: 12px;
        border: 1px solid rgba(0, 0, 0, .07);
        border-radius: 5px;
        background-color: rgba(255, 255, 255, 0.98);
        background-clip: padding-box;
        -webkit-box-shadow: 1px 1px 2px rgba(0, 0, 0, .125);
        box-shadow: 1px 1px 2px rgba(0, 0, 0, .125);
        word-wrap: break-word;
        white-space: nowrap;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        z-index: 999;
        cursor: pointer;
        max-height: 70%;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .post-toc .post-toc-title {
        width: 100%;
        margin: 0 auto;
        font-size: 20px;
        font-weight: 400;
        text-transform: uppercase;
        text-align: center;
    }

    .post-toc .post-toc-content {
        font-size: 15px;
    }

    .post-toc .post-toc-content>nav>ul {
        margin: 10px 0;
    }

    .post-toc .post-toc-content ul {
        padding-left: 20px;
        list-style: square;
        margin: 0.5em;
        line-height: 1.8em;
    }

    .post-toc .post-toc-content ul ul {
        padding-left: 15px;
        display: none;
    }

    @media print,
    screen and (max-width:1057px) {
        .post-toc {
            display: none;
        }
    }
</style>
<div class="post-toc" style="position: absolute; top: 188px;">
    <h2 class="post-toc-title">文章目录</h2>
    <div class="post-toc-content">
        <nav id="TableOfContents"></nav>
    </div>
</div>
<script type="text/javascript">
    $(document).ready(function () {
        var postToc = $(".post-toc");
        if (postToc.length) {
            var leftPos = $("#main").offset().left;
            if(leftPos<220){
                postToc.css({"width":leftPos-10,"margin-left":(0-leftPos)})
            }

            var t = postToc.offset().top - 20,
                a = {
                    start: {
                        position: "absolute",
                        top: t
                    },
                    process: {
                        position: "fixed",
                        top: 20
                    },
                };
            $(window).scroll(function () {
                var e = $(window).scrollTop();
                e < t ? postToc.css(a.start) : postToc.css(a.process)
            })
        }
    })
</script>
    <article class="post">
        <header>
            <h1 class="post-title">计算平均数</h1>
        </header>
        <date class="post-meta meta-date">
            2021年8月30日
        </date>
        
        <div class="post-meta">
            <span>|</span>
            
            <span class="meta-category"><a href='/categories/Flutter'>Flutter</a></span>
            
            <span class="meta-category"><a href='/categories/dart'>dart</a></span>
            
        </div>
        
        
        <div class="post-meta">
            <span id="busuanzi_container_page_pv">|<span id="busuanzi_value_page_pv"></span><span>
                    阅读</span></span>
        </div>
        
        
        <div class="post-content">
            <h1 id="list---flutter--如何计算列表中的平均数据">list - flutter -如何计算列表中的平均数据？</h1>
<p>我有一个有关用户食物的<code>List&lt;Comment&gt;</code>。
看起来像这样:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart">[
    {userId: <span style="color:#ae81ff">1</span>,
     rating: <span style="color:#ae81ff">4.5</span>
    },
    {userId: <span style="color:#ae81ff">2</span>,
     rating: <span style="color:#ae81ff">4.0</span>
    },
    {userId: <span style="color:#ae81ff">3</span>,
     rating: <span style="color:#ae81ff">3.5</span>
    },
    {userId: <span style="color:#ae81ff">4</span>,
     rating: <span style="color:#ae81ff">3.0</span>
    }

   ...
];
</code></pre></div><p>我想获得平均评分。 <code>AVERAGE = Number of ratings : total user</code>，如何在dart中应用呢？</p>
<p><strong>最佳答案</strong></p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart">  <span style="color:#66d9ef">var</span> values <span style="color:#f92672">=</span> [
    {<span style="color:#e6db74">&#39;userId&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;rating&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">4.5</span>},
    {<span style="color:#e6db74">&#39;userId&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">2</span>, <span style="color:#e6db74">&#39;rating&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">4.0</span>},
    {<span style="color:#e6db74">&#39;userId&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">3</span>, <span style="color:#e6db74">&#39;rating&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">3.5</span>},
    {<span style="color:#e6db74">&#39;userId&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">4</span>, <span style="color:#e6db74">&#39;rating&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">3.0</span>}
  ];

  <span style="color:#66d9ef">var</span> result <span style="color:#f92672">=</span> values.map((m) <span style="color:#f92672">=&gt;</span> m[<span style="color:#e6db74">&#39;rating&#39;</span>]).reduce((a, b) <span style="color:#f92672">=&gt;</span> a <span style="color:#f92672">+</span> b) <span style="color:#f92672">/</span> values.length;
  print(result);
</code></pre></div><h1 id="dart---如何从dart中的列表中找到最小值和最大值">dart - 如何从Dart中的列表中找到最小值和最大值？</h1>
<p>我已经尝试了以下代码段。但是它将引发有关类型转换的错误。因为列表具有整数和 double 值的组合。但是 **list.reduce(min)**返回唯一的整数值。因此，您能为这些人提供解决方案吗？提前致谢。
<strong>注意-<strong>但是，我从用户那里获得了唯一的</strong>动态</strong>列表。</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"> <span style="color:#66d9ef">final</span> List<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">dynamic</span><span style="color:#f92672">&gt;</span> y <span style="color:#f92672">=</span> [<span style="color:#ae81ff">12</span>, <span style="color:#ae81ff">12</span>, <span style="color:#ae81ff">23.5</span>, <span style="color:#ae81ff">2</span>, <span style="color:#ae81ff">19</span>, <span style="color:#ae81ff">1</span>, <span style="color:#ae81ff">23</span>, <span style="color:#ae81ff">16</span>, <span style="color:#ae81ff">29.7</span>, <span style="color:#ae81ff">32</span>, <span style="color:#ae81ff">45</span>, <span style="color:#ae81ff">68</span>, <span style="color:#ae81ff">23</span>, <span style="color:#ae81ff">21</span>];
 List<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">num</span><span style="color:#f92672">&gt;</span> yValues <span style="color:#f92672">=</span> y;
 <span style="color:#66d9ef">num</span> yMin <span style="color:#f92672">=</span> yValues.reduce(min);
 <span style="color:#66d9ef">num</span> yMax <span style="color:#f92672">=</span> yValues.reduce(max);
</code></pre></div><p><strong>最佳答案</strong></p>
<p>您正在编写List的类型为<code>List&lt;dynamic&gt;</code>。由于<code>min</code>和<code>max</code>仅适用于<code>num</code>类型，因此我们需要将列表中的每个元素<code>cast</code>转换为<code>num</code>，如下所示:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">import</span> <span style="color:#e6db74">&#39;dart:math&#39;</span>;

<span style="color:#66d9ef">void</span> main() {
  <span style="color:#66d9ef">final</span> List<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">dynamic</span><span style="color:#f92672">&gt;</span> y <span style="color:#f92672">=</span> <span style="color:#f92672">&lt;</span><span style="color:#66d9ef">dynamic</span><span style="color:#f92672">&gt;</span>[<span style="color:#ae81ff">12</span>, <span style="color:#ae81ff">12</span>, <span style="color:#ae81ff">23.5</span>, <span style="color:#ae81ff">2</span>, <span style="color:#ae81ff">19</span>, <span style="color:#ae81ff">1</span>, <span style="color:#ae81ff">23</span>, <span style="color:#ae81ff">16</span>, <span style="color:#ae81ff">29.7</span>, <span style="color:#ae81ff">32</span>, <span style="color:#ae81ff">45</span>, <span style="color:#ae81ff">68</span>, <span style="color:#ae81ff">23</span>, <span style="color:#ae81ff">21</span>];
  <span style="color:#66d9ef">final</span> yMin <span style="color:#f92672">=</span> y.cast<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">num</span><span style="color:#f92672">&gt;</span>().reduce(min);
  <span style="color:#66d9ef">final</span> yMax <span style="color:#f92672">=</span> y.cast<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">num</span><span style="color:#f92672">&gt;</span>().reduce(max);
  print(yMin); <span style="color:#75715e">// 1
</span><span style="color:#75715e"></span>  print(yMax); <span style="color:#75715e">// 68
</span></code></pre></div><h1 id="flutter---如何在dartflutter中将某些元素从一个map复制到新map中">flutter - 如何在Dart/Flutter中将某些元素从一个Map复制到新Map中？</h1>
<p>如何在Dart / Flutter中将某些元素从一个Map复制到新Map中？</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart">Old_Map <span style="color:#f92672">=</span> {
  <span style="color:#e6db74">&#39;A&#39;</span> <span style="color:#f92672">:</span> {Big <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;A&#39;</span>, Small <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;a&#39;</span> },
  <span style="color:#e6db74">&#39;B&#39;</span> <span style="color:#f92672">:</span> {Big <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;B&#39;</span>, Small <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;b&#39;</span> },
  <span style="color:#e6db74">&#39;C&#39;</span> <span style="color:#f92672">:</span> {Big <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;C&#39;</span>, Small <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;c&#39;</span> },
  <span style="color:#e6db74">&#39;D&#39;</span> <span style="color:#f92672">:</span> {Big <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;D&#39;</span>, Small <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;d&#39;</span> },
}

Old_Map <span style="color:#f92672">=&gt;</span> New_Map
</code></pre></div><p>我只想要</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#e6db74">&#39;B&#39;</span> <span style="color:#f92672">:</span> {Big <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;B&#39;</span>, Small <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;b&#39;</span> },
<span style="color:#e6db74">&#39;C&#39;</span> <span style="color:#f92672">:</span> {Big <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;C&#39;</span>, Small <span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;c&#39;</span> },
</code></pre></div><p><strong>最佳答案</strong></p>
<p>你可以这样</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"> <span style="color:#66d9ef">final</span> oldMap <span style="color:#f92672">=</span> {
    <span style="color:#e6db74">&#39;A&#39;</span><span style="color:#f92672">:</span> {<span style="color:#e6db74">&#39;Big&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;A&#39;</span>, <span style="color:#e6db74">&#39;Small&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;a&#39;</span>},
    <span style="color:#e6db74">&#39;B&#39;</span><span style="color:#f92672">:</span> {<span style="color:#e6db74">&#39;Big&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;B&#39;</span>, <span style="color:#e6db74">&#39;Small&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;b&#39;</span>},
    <span style="color:#e6db74">&#39;C&#39;</span><span style="color:#f92672">:</span> {<span style="color:#e6db74">&#39;Big&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;C&#39;</span>, <span style="color:#e6db74">&#39;Small&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;c&#39;</span>},
    <span style="color:#e6db74">&#39;D&#39;</span><span style="color:#f92672">:</span> {<span style="color:#e6db74">&#39;Big&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;D&#39;</span>, <span style="color:#e6db74">&#39;Small&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;d&#39;</span>},
  };

  <span style="color:#66d9ef">final</span> newMap <span style="color:#f92672">=</span>
      Map.fromIterable(oldMap.keys.where((k) <span style="color:#f92672">=&gt;</span> k <span style="color:#f92672">==</span> <span style="color:#e6db74">&#39;B&#39;</span> <span style="color:#f92672">||</span> k <span style="color:#f92672">==</span><span style="color:#e6db74">&#39;C&#39;</span>), 
      key: (k) <span style="color:#f92672">=&gt;</span> k, value: (v) <span style="color:#f92672">=&gt;</span> oldMap[v]);
</code></pre></div><p>由于<code>keys</code>返回 map 键的<code>Iterable&lt;String&gt;</code>，因此您可以使用<code>where</code>方法检查所需的键，然后可以基于旧 map 值填充值。</p>
<h1 id="stream---dart-流中的-listen-和-foreach-有什么区别">stream - Dart 流中的 listen 和 forEach 有什么区别？</h1>
<p>如果我有 <code>Stream</code>在 Dart 中，我可以同时使用 <code>listen</code>和 <code>forEach</code> ，但我不明白其中的区别。</p>
<p>因此，例如考虑以下代码:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">final</span> process <span style="color:#f92672">=</span> <span style="color:#66d9ef">await</span> Process.start(<span style="color:#e6db74">&#39;pub&#39;</span>, [<span style="color:#e6db74">&#39;serve&#39;</span>]);
process.stdout.map((l) <span style="color:#f92672">=&gt;</span> UTF8.decode(l)).forEach(print);
</code></pre></div><p>我也可以写:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart">process.stdout.map((l) <span style="color:#f92672">=&gt;</span> UTF8.decode(l)).listen(print);
</code></pre></div><p>有什么区别吗？</p>
<p><strong>最佳答案</strong></p>
<p><code>forEach</code> <code>Stream</code> 上的函数将在第一个错误处停止，并且不会给您 <code>StreamSubscription</code>控制您在流上收听的方式。使用 <code>forEach</code>如果这是您想要的，那就太好了 - 它会告诉您何时完成(返回的 <code>Future</code> )并且您所要做的就是处理事件。如果您需要更多控制，可以使用 <code>listen</code>打电话是怎么回事<code>forEach</code>被执行。</p>
<p>这就像<code>Iterable.forEach</code>之间的区别和 <code>Iterable.iterator</code> - 前者只是为每个元素调用一个回调，另一个给你一种控制迭代的方法。</p>
<h1 id="dart---如何制作新数组嵌套排序映射">dart - 如何制作新数组嵌套排序映射？</h1>
<p>我有一个看起来像这样的数据块:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">var</span> list <span style="color:#f92672">=</span> [
  { id: <span style="color:#e6db74">&#39;1&#39;</span>, title: <span style="color:#e6db74">&#39;thing1&#39;</span>, week: <span style="color:#ae81ff">1</span>, day: <span style="color:#ae81ff">1</span> },
  { id: <span style="color:#e6db74">&#39;2&#39;</span>, title: <span style="color:#e6db74">&#39;thing2&#39;</span>, week: <span style="color:#ae81ff">1</span>, day: <span style="color:#ae81ff">1</span> },
  { id: <span style="color:#e6db74">&#39;3&#39;</span>, title: <span style="color:#e6db74">&#39;thing3&#39;</span>, week: <span style="color:#ae81ff">1</span>, day: <span style="color:#ae81ff">2</span> },
  { id: <span style="color:#e6db74">&#39;4&#39;</span>, title: <span style="color:#e6db74">&#39;thing4&#39;</span>, week: <span style="color:#ae81ff">1</span>, day: <span style="color:#ae81ff">2</span> },
  { id: <span style="color:#e6db74">&#39;5&#39;</span>, title: <span style="color:#e6db74">&#39;thing5&#39;</span>, week: <span style="color:#ae81ff">1</span>, day: <span style="color:#ae81ff">3</span> },
  { id: <span style="color:#e6db74">&#39;6&#39;</span>, title: <span style="color:#e6db74">&#39;thing6&#39;</span>, week: <span style="color:#ae81ff">1</span>, day: <span style="color:#ae81ff">3</span> },
  { id: <span style="color:#e6db74">&#39;7&#39;</span>, title: <span style="color:#e6db74">&#39;thing7&#39;</span>, week: <span style="color:#ae81ff">2</span>, day: <span style="color:#ae81ff">4</span> },
  { id: <span style="color:#e6db74">&#39;8&#39;</span>, title: <span style="color:#e6db74">&#39;thing8&#39;</span>, week: <span style="color:#ae81ff">2</span>, day: <span style="color:#ae81ff">5</span> },
];
</code></pre></div><p>我想要做的是将这个 List 转换为输出这个的东西:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">var</span> transformedList <span style="color:#f92672">=</span> [
  { <span style="color:#e6db74">&#39;Week 1&#39;</span><span style="color:#f92672">:</span> [
      { id: <span style="color:#e6db74">&#39;1&#39;</span>, title: <span style="color:#e6db74">&#39;thing1&#39;</span>, day: <span style="color:#ae81ff">1</span>, week: <span style="color:#ae81ff">1</span> },
      { id: <span style="color:#e6db74">&#39;2&#39;</span>, title: <span style="color:#e6db74">&#39;thing2&#39;</span>, day: <span style="color:#ae81ff">1</span>, week: <span style="color:#ae81ff">1</span> },
      { id: <span style="color:#e6db74">&#39;3&#39;</span>, title: <span style="color:#e6db74">&#39;thing3&#39;</span>, day: <span style="color:#ae81ff">2</span>, week: <span style="color:#ae81ff">1</span> },
      { id: <span style="color:#e6db74">&#39;4&#39;</span>, title: <span style="color:#e6db74">&#39;thing4&#39;</span>, day: <span style="color:#ae81ff">2</span>, week: <span style="color:#ae81ff">1</span> },
      { id: <span style="color:#e6db74">&#39;5&#39;</span>, title: <span style="color:#e6db74">&#39;thing5&#39;</span>, day: <span style="color:#ae81ff">3</span>, week: <span style="color:#ae81ff">1</span> },
      { id: <span style="color:#e6db74">&#39;6&#39;</span>, title: <span style="color:#e6db74">&#39;thing6&#39;</span>, day: <span style="color:#ae81ff">3</span>, week: <span style="color:#ae81ff">1</span> },
    ],
    <span style="color:#e6db74">&#39;Week 2&#39;</span><span style="color:#f92672">:</span> [
      { id: <span style="color:#e6db74">&#39;7&#39;</span>, title: <span style="color:#e6db74">&#39;thing7&#39;</span>, day: <span style="color:#ae81ff">4</span>, week: <span style="color:#ae81ff">2</span> },
      { id: <span style="color:#e6db74">&#39;8&#39;</span>, title: <span style="color:#e6db74">&#39;thing8&#39;</span>, day: <span style="color:#ae81ff">5</span>, week: <span style="color:#ae81ff">3</span> },
    ]
  }
]
</code></pre></div><p>到目前为止我尝试过的是:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">var</span> programMap <span style="color:#f92672">=</span> Map.fromIterable(userProgramSteps, key: (k) <span style="color:#f92672">=&gt;</span> k.getWeek(), value: (v) <span style="color:#f92672">=&gt;</span> v);

<span style="color:#75715e">// handles the week port just fine, but very stuck on the list of days.
</span></code></pre></div><p>我对flutter和 Dart 很陌生，所以我有点迷茫&hellip;&hellip;有人可以帮忙吗？</p>
<p><strong>最佳答案</strong></p>
<p>尊重您之前(已删除)的问题，这里的代码:
<strong>data_weeks.dart</strong></p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">const</span> week_data <span style="color:#f92672">=</span> [
  { <span style="color:#e6db74">&#39;id&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;1&#39;</span>, <span style="color:#e6db74">&#39;week&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;day&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;title&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;thing1&#39;</span> },
  { <span style="color:#e6db74">&#39;id&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;2&#39;</span>, <span style="color:#e6db74">&#39;week&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;day&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;title&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;thing2&#39;</span> },
  { <span style="color:#e6db74">&#39;id&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;3&#39;</span>, <span style="color:#e6db74">&#39;week&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;day&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;title&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;thing3&#39;</span> },
  { <span style="color:#e6db74">&#39;id&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;4&#39;</span>, <span style="color:#e6db74">&#39;week&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;day&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">2</span>, <span style="color:#e6db74">&#39;title&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;thing4&#39;</span> },
  { <span style="color:#e6db74">&#39;id&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;5&#39;</span>, <span style="color:#e6db74">&#39;week&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">1</span>, <span style="color:#e6db74">&#39;day&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">2</span>, <span style="color:#e6db74">&#39;title&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;thing5&#39;</span> },
  { <span style="color:#e6db74">&#39;id&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;6&#39;</span>, <span style="color:#e6db74">&#39;week&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">2</span>, <span style="color:#e6db74">&#39;day&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">3</span>, <span style="color:#e6db74">&#39;title&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;thing6&#39;</span> },
  { <span style="color:#e6db74">&#39;id&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;7&#39;</span>, <span style="color:#e6db74">&#39;week&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">2</span>, <span style="color:#e6db74">&#39;day&#39;</span><span style="color:#f92672">:</span> <span style="color:#ae81ff">4</span>, <span style="color:#e6db74">&#39;title&#39;</span><span style="color:#f92672">:</span> <span style="color:#e6db74">&#39;thing7&#39;</span> },
];
</code></pre></div><p><strong>home_page.dart</strong></p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">import</span> <span style="color:#e6db74">&#39;package:flutter/material.dart&#39;</span>;
<span style="color:#66d9ef">import</span> <span style="color:#e6db74">&#39;package:list_cards/src/shared/data_weeks.dart&#39;</span>;


<span style="color:#66d9ef">class</span> <span style="color:#a6e22e">HomePage</span> <span style="color:#66d9ef">extends</span> StatelessWidget {
  <span style="color:#75715e">/* ---------------------------------------------------------------------------- */</span>
  <span style="color:#66d9ef">const</span> HomePage({Key key}) <span style="color:#f92672">:</span> <span style="color:#66d9ef">super</span>(key: key);
  <span style="color:#75715e">/* ---------------------------------------------------------------------------- */</span>
  <span style="color:#960050;background-color:#1e0010">@</span>override
  Widget build(BuildContext context) {
    <span style="color:#66d9ef">final</span> data <span style="color:#f92672">=</span> getNewData();

    <span style="color:#66d9ef">return</span> Scaffold(
      appBar: AppBar(
        title: Text(<span style="color:#e6db74">&#39;Hi!&#39;</span>),
        centerTitle: <span style="color:#66d9ef">true</span>,
      ),
      body: Padding(
        padding: <span style="color:#66d9ef">const</span> EdgeInsets.all(<span style="color:#ae81ff">10.0</span>),
        child: ListView.builder(
          itemCount: data.length,
          itemBuilder: (context, index) <span style="color:#f92672">=&gt;</span> ListTile(
            title: Text(
              <span style="color:#e6db74">&#39;Week </span><span style="color:#e6db74">${</span>data.keys.toList()[index]<span style="color:#e6db74">}</span><span style="color:#e6db74">&#39;</span>, 
              style: TextStyle(fontSize: <span style="color:#ae81ff">20</span>, fontWeight: FontWeight.bold),
            ),
            subtitle: getSubtitles1(data[data.keys.toList()[index]], context),
          ),
        ),
      ),
    );
  }

  Widget getSubtitles1(List<span style="color:#f92672">&lt;</span>Map<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">int</span>, <span style="color:#66d9ef">Object</span><span style="color:#f92672">&gt;&gt;</span> data, BuildContext context) {
    <span style="color:#66d9ef">return</span> Column(
      children: List.generate(data.length, (index) <span style="color:#f92672">=&gt;</span> ListTile(
        title: Text(
          <span style="color:#e6db74">&#39;DAY </span><span style="color:#e6db74">${</span>data[index].keys.toList()[<span style="color:#ae81ff">0</span>]<span style="color:#e6db74">}</span><span style="color:#e6db74">&#39;</span>,
          style: TextStyle(
            fontSize: <span style="color:#ae81ff">18</span>, fontWeight: FontWeight.bold, color: Colors.black.withOpacity(<span style="color:#ae81ff">0.4</span>)
          ),
        ),
        subtitle: getSubtitles2(data[index][data[index].keys.toList()[<span style="color:#ae81ff">0</span>]], context),
      )),
    );
  }

  Widget getSubtitles2(List<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">String</span><span style="color:#f92672">&gt;</span> data, BuildContext context) {
    <span style="color:#66d9ef">final</span> size <span style="color:#f92672">=</span> MediaQuery.of(context).size;

    <span style="color:#66d9ef">return</span> Column(
      children: List.generate(data.length, (index) <span style="color:#f92672">=&gt;</span> Card(
        elevation: <span style="color:#ae81ff">0</span>,
        margin: EdgeInsets.all(<span style="color:#ae81ff">0</span>),
        child: Padding(
          padding: <span style="color:#66d9ef">const</span> EdgeInsets.symmetric(horizontal: <span style="color:#ae81ff">10</span>, vertical: <span style="color:#ae81ff">2</span>),
          child: Row(
            children: [
              Container(
                width: (size.width <span style="color:#f92672">+</span> <span style="color:#ae81ff">80</span>) <span style="color:#f92672">/</span> <span style="color:#ae81ff">2</span>,
                child: Text(data[index]),
              ),
              IconButton(icon: Icon(Icons.check_box_outline_blank), onPressed: () {}),
            ],
          ),
        ),
      )),
    );
  }

  Map<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">int</span>, <span style="color:#66d9ef">Object</span><span style="color:#f92672">&gt;</span> getNewData() {
    <span style="color:#66d9ef">var</span> weeks <span style="color:#f92672">=</span> week_data.map<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">int</span><span style="color:#f92672">&gt;</span>((m) <span style="color:#f92672">=&gt;</span> m[<span style="color:#e6db74">&#39;week&#39;</span>]).toSet().toList();
    <span style="color:#66d9ef">var</span> newData <span style="color:#f92672">=</span> Map<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">int</span>, <span style="color:#66d9ef">Object</span><span style="color:#f92672">&gt;</span>();

    weeks.forEach((w) {
      newData[w] <span style="color:#f92672">=</span> week_data.where((m) <span style="color:#f92672">=&gt;</span> m[<span style="color:#e6db74">&#39;week&#39;</span>] <span style="color:#f92672">==</span> w).map<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">int</span><span style="color:#f92672">&gt;</span>((m) <span style="color:#f92672">=&gt;</span> m[<span style="color:#e6db74">&#39;day&#39;</span>]).toSet().map<span style="color:#f92672">&lt;</span>Map<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">int</span>, <span style="color:#66d9ef">Object</span><span style="color:#f92672">&gt;&gt;</span>((e) <span style="color:#f92672">=&gt;</span> {e: week_data.where((m) <span style="color:#f92672">=&gt;</span> m[<span style="color:#e6db74">&#39;week&#39;</span>] <span style="color:#f92672">==</span> w <span style="color:#f92672">&amp;&amp;</span> m[<span style="color:#e6db74">&#39;day&#39;</span>] <span style="color:#f92672">==</span> e).map<span style="color:#f92672">&lt;</span><span style="color:#66d9ef">String</span><span style="color:#f92672">&gt;</span>((m) <span style="color:#f92672">=&gt;</span> m[<span style="color:#e6db74">&#39;title&#39;</span>]).toList()}).toList();
    });

    <span style="color:#66d9ef">return</span> newData;
  }
}
</code></pre></div><p>结果:

        <a data-fancybox="gallery" href="https://luckly007.oss-cn-beijing.aliyuncs.com/image/image-20210830173003491.png">
            <img class="mx-auto" alt="image-20210830173003491" src="https://luckly007.oss-cn-beijing.aliyuncs.com/image/image-20210830173003491.png" />
        </a>
    
关于您当前的问题，<code>getNewData()</code>方法包含您的答案的逻辑。好好享受!</p>
<h1 id="dart---flutter删除所有已保存的共享首选项">dart - Flutter:删除所有已保存的共享首选项</h1>
<p>想在用户点击注销时删除所有保存的共享首选项。有什么方法可以一次性完成而不删除一个吗？</p>
<p><strong>最佳答案</strong></p>
<p>我使用<code>shared_preferences</code>插件:
用<code>pubspec.yaml</code></p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart">dependencies:
  flutter:
    sdk: flutter

  shared_preferences: <span style="color:#f92672">^</span><span style="color:#ae81ff">0.4</span>.<span style="color:#ae81ff">3</span>
</code></pre></div><p>并在dart文件中:</p>
<div class="highlight"><pre style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-dart" data-lang="dart"><span style="color:#66d9ef">import</span> <span style="color:#e6db74">&#39;dart:async&#39;</span>;
<span style="color:#66d9ef">import</span> <span style="color:#e6db74">&#39;package:shared_preferences/shared_preferences.dart&#39;</span>;
...
SharedPreferences preferences <span style="color:#f92672">=</span> <span style="color:#66d9ef">await</span> SharedPreferences.getInstance();
<span style="color:#66d9ef">await</span> preferences.clear();
</code></pre></div><p>我觉得这就是你所需要的</p>
<p><a href="https://www.coder.work/blog?tag=dart">https://www.coder.work/blog?tag=dart</a></p>

        </div>

        
<div class="post-archive">
    <ul class="post-copyright">
        <li><strong>原文作者：</strong><a rel="author" href="https://luckly.work/">luckly</a></li>
        <li style="word-break:break-all"><strong>原文链接：</strong><a href="https://luckly.work/post/dart/%E8%AE%A1%E7%AE%97%E5%B9%B3%E5%9D%87%E6%95%B0/">https://luckly.work/post/dart/%E8%AE%A1%E7%AE%97%E5%B9%B3%E5%9D%87%E6%95%B0/</a></li>
        <li><strong>版权声明：</strong>本作品采用<a rel="license" href="https://creativecommons.org/licenses/by-nc-nd/4.0/">知识共享署名-非商业性使用-禁止演绎 4.0 国际许可协议</a>进行许可，非商业转载请注明出处（作者，原文链接），商业转载请联系作者获得授权。</li>
    </ul>
</div>
<br/>



        

<div class="post-archive">
    <h2>See Also</h2>
    <ul class="listing">
        
        <li><a href="/post/dart/Datatime/">datatime</a></li>
        
        <li><a href="/post/dart/Dart%E5%BC%82%E6%AD%A5%E7%BC%96%E7%A8%8B%E4%B9%8BStream/">《Dart异步编程之Stream》</a></li>
        
        <li><a href="/post/dart/Dart%E5%BE%AE%E5%9F%BA%E5%87%86%E6%B5%8B%E8%AF%95%E7%AC%AC%E4%B8%80%E9%83%A8%E5%88%86/">《Dart微基准测试第一部分》</a></li>
        
        <li><a href="/post/dart/Dart_VM%E7%9A%84%E7%9B%B8%E5%85%B3%E7%AE%80%E4%BB%8B%E4%B8%8E%E8%BF%90%E8%A1%8C%E6%A8%A1%E5%BC%8F%E8%A7%A3%E6%9E%90/">《Dart_VM的相关简介与运行模式解析》</a></li>
        
        <li><a href="/post/Flutter/Flutter%E4%B9%8B%E6%B7%B1%E5%85%A5%E7%90%86%E8%A7%A3Dart%E7%A9%BA%E5%AE%89%E5%85%A8/">《Flutter之深入理解Dart空安全》</a></li>
        
    </ul>
</div>


        <div class="post-meta meta-tags">
            
            <ul class="clearfix">
                
                <li><a href='/tags/Flutter'>Flutter</a></li>
                
                <li><a href='/tags/dart'>dart</a></li>
                
            </ul>
            
        </div>
    </article>
    
    

    
    
    <div class="post bg-white">
      <script src="https://utteranc.es/client.js"
            repo= "https://github.com/ITmxs/repo"
            issue-term="pathname"
            theme="github-light"
            crossorigin="anonymous"
            async>
      </script>
    </div>
    
</div>

                    <footer id="footer">
    <div>
        &copy; 2021 <a href="https://luckly.work/">早起的年轻人 By luckly</a>
        
        | <a rel="nofollow" target="_blank" href="http://beian.miit.gov.cn/">粤ICP备2021号-1</a>
        
    </div>
    <br />
    <div>
        <div class="github-badge">
            <a href="https://juejin.cn/user/3843548384077192" target="_black" rel="nofollow"><span class="badge-subject">Powered by</span><span class="badge-value bg-blue">掘金</span></a>
        </div>
        <div class="github-badge">
            <a href="https://space.bilibili.com/480883651" target="_black"><span class="badge-subject">Design by</span><span class="badge-value bg-brightgreen">早起的年轻人</span></a>
        </div>
        <div class="github-badge">
            <a href="https://cloud.tencent.com/developer/user/6702670" target="_black"><span class="badge-subject">Theme</span><span class="badge-value bg-yellowgreen">云社区</span></a>
        </div>
    </div>
</footer>


    
    <script type="text/javascript">
        window.MathJax = {
            tex2jax: {
                inlineMath: [['$', '$']],
                processEscapes: true
                }
            };
    </script>
    <script src='https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-MML-AM_CHTML' async></script><script src="https://cdn.bootcdn.net/ajax/libs/fancybox/3.5.7/jquery.fancybox.min.js"></script>

<a id="rocket" href="#top"></a>
<script type="text/javascript" src='/js/totop.js?v=0.0.0' async=""></script>



    <script type="text/javascript" src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js" async></script>




    <script src='/js/douban.js'></script>
    <script src="/js/copy-to-clipboard.js"></script>

                </div>

                <div id="secondary">
    <section class="widget">
        <form id="search" action='https://luckly.work/search/' method="get" accept-charset="utf-8" target="_blank" _lpchecked="1">
      
      <input type="text" name="q" maxlength="20" placeholder="Search">
      <input type="hidden" name="sitesearch" value="https://luckly.work/">
      <button type="submit" class="submit icon-search"></button>
</form>
    </section>
    
    <section class="widget">
        <h3 class="widget-title">最近文章</h3>
<ul class="widget-list">
    
    <li>
        <a href="https://luckly.work/post/nginx/nginx%E6%96%87%E4%BB%B6%E5%86%85%E5%AE%B9/" title="Nginx文件内容">Nginx文件内容</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/nginx/nginx%E6%9E%81%E7%AE%80%E6%95%99%E7%A8%8B/" title="Nginx极简教程">Nginx极简教程</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/nginx/%E5%8D%81%E5%88%86%E9%92%9F%E5%85%A5%E9%97%A8nginx/" title="十分钟入门Nginx">十分钟入门Nginx</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/go/Goland%E8%BF%9C%E7%A8%8B%E5%BC%80%E5%8F%91%E9%85%8D%E7%BD%AE/" title="Goland远程开发配置">Goland远程开发配置</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/%E8%AF%BB%E4%B9%A6/%E5%9F%9F%E5%90%8D%E8%A7%A3%E6%9E%90/" title="域名解析">域名解析</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/git/%E6%8F%90%E4%BA%A4%E8%BF%87%E7%A8%8B%E7%9C%81%E7%95%A5%E6%9F%90%E4%BA%9B%E6%96%87%E4%BB%B6/" title="提交过程省略某些文件">提交过程省略某些文件</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/flutter_tips/Flutter_DropdownButton%E7%A4%BA%E4%BE%8B/" title="Flutter_DropdownButton示例">Flutter_DropdownButton示例</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/flutter_tips/Flutter_ExpansionPanelList%E5%92%8CExpansionPanelList.radio%E7%A4%BA%E4%BE%8B/" title="Flutter_ExpansionPanelList和ExpansionPanelList">Flutter_ExpansionPanelList和ExpansionPanelList</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/flutter_tips/Flutter%E5%BE%AE%E4%BF%A1%E5%88%86%E4%BA%AB%E9%93%BE%E6%8E%A5%E8%B7%B3%E5%9B%9EApp%E6%8C%87%E5%AE%9A%E9%A1%B5%E9%9D%A2/" title="Flutter微信分享链接跳回App指定页面">Flutter微信分享链接跳回App指定页面</a>
    </li>
    
    <li>
        <a href="https://luckly.work/post/%E4%BF%A1%E6%81%AF%E7%B3%BB%E7%BB%9F/%E5%A4%96%E5%8C%85%E5%8F%AF%E8%83%BD%E7%9A%84%E9%97%AE%E9%A2%98/" title="外包可能的问题">外包可能的问题</a>
    </li>
    
</ul>
    </section>

    

    <section class="widget">
        <h3 class="widget-title"><a href='/categories/'>分类</a></h3>
<ul class="widget-list">
    
    <li><a href="https://luckly.work/categories/Flutter/">Flutter (326)</a></li>
    
    <li><a href="https://luckly.work/categories/IT/">IT (2)</a></li>
    
    <li><a href="https://luckly.work/categories/Kotlin/">Kotlin (2)</a></li>
    
    <li><a href="https://luckly.work/categories/Mysql/">Mysql (1)</a></li>
    
    <li><a href="https://luckly.work/categories/nginx/">nginx (1)</a></li>
    
    <li><a href="https://luckly.work/categories/Vue/">Vue (6)</a></li>
    
    <li><a href="https://luckly.work/categories/YouTube%E8%A7%86%E9%A2%91%E4%B8%8B%E8%BD%BD/">YouTube视频下载 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/android/">android (6)</a></li>
    
    <li><a href="https://luckly.work/categories/dart/">dart (96)</a></li>
    
    <li><a href="https://luckly.work/categories/Flutter/">Flutter (28)</a></li>
    
    <li><a href="https://luckly.work/categories/gin/">gin (25)</a></li>
    
    <li><a href="https://luckly.work/categories/git/">git (4)</a></li>
    
    <li><a href="https://luckly.work/categories/Go/">Go (102)</a></li>
    
    <li><a href="https://luckly.work/categories/gorm/">gorm (4)</a></li>
    
    <li><a href="https://luckly.work/categories/grpc/">grpc (1)</a></li>
    
    <li><a href="https://luckly.work/categories/html/">html (3)</a></li>
    
    <li><a href="https://luckly.work/categories/ios/">ios (1)</a></li>
    
    <li><a href="https://luckly.work/categories/linux/">linux (1)</a></li>
    
    <li><a href="https://luckly.work/categories/nginx/">nginx (6)</a></li>
    
    <li><a href="https://luckly.work/categories/python/">python (35)</a></li>
    
    <li><a href="https://luckly.work/categories/read/">读书笔记 (6)</a></li>
    
    <li><a href="https://luckly.work/categories/redis/">redis (2)</a></li>
    
    <li><a href="https://luckly.work/categories/%E4%B8%AA%E4%BA%BA%E8%B5%84%E6%96%99/">个人资料 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E4%B9%A6%E5%8D%95/">书单 (8)</a></li>
    
    <li><a href="https://luckly.work/categories/%E4%B9%A6%E8%AF%84/">书评 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E4%BF%A1%E6%81%AF%E7%B3%BB%E7%BB%9F%E7%AE%A1%E7%90%86%E5%B8%88/">信息系统管理师 (19)</a></li>
    
    <li><a href="https://luckly.work/categories/%E4%BF%A1%E6%81%AF%E7%B3%BB%E7%BB%9F%E9%A1%B9%E7%9B%AE%E7%AE%A1%E7%90%86%E5%B8%88/">信息系统项目管理师 (25)</a></li>
    
    <li><a href="https://luckly.work/categories/%E5%8E%9F%E5%88%99/">原则 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E5%8E%9F%E7%94%9F%E9%80%9A%E8%AE%AF/">原生通讯 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E5%9F%BA%E7%A1%80/">基础 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E5%A4%8D%E5%88%A9%E6%95%88%E5%BA%94/">复利效应 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E5%AE%89%E8%A3%85%E6%95%99%E7%A8%8B/">安装教程 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E5%B0%91%E6%9C%89%E4%BA%BA%E8%B5%B0%E7%9A%84%E8%B7%AF/">少有人走的路 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E5%BF%83%E8%AF%AD/">心语 (3)</a></li>
    
    <li><a href="https://luckly.work/categories/%E6%8F%92%E4%BB%B6/">插件 (2)</a></li>
    
    <li><a href="https://luckly.work/categories/%E6%95%99%E5%AD%A6/">教学 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E7%8E%8B%E9%98%B3%E6%98%8E/">王阳明 (3)</a></li>
    
    <li><a href="https://luckly.work/categories/%E7%94%B5%E5%AD%90%E4%B9%A6/">电子书 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E7%99%BB%E9%99%86%E8%A1%A8%E5%8D%95/">登陆表单 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E7%A8%BB%E7%9B%9B%E5%92%8C%E5%A4%AB/">稻盛和夫 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E7%A9%B7%E7%88%B8%E7%88%B8%E5%AF%8C%E7%88%B8%E7%88%B8/">穷爸爸富爸爸 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E7%B2%BE%E8%BF%9B/">精进 (3)</a></li>
    
    <li><a href="https://luckly.work/categories/%E7%BC%96%E7%A8%8B/">编程 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E8%99%9A%E5%B9%BB/">虚幻 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E8%B4%A2%E5%8A%A1%E8%87%AA%E7%94%B1%E4%B9%8B%E8%B7%AF/">财务自由之路 (2)</a></li>
    
    <li><a href="https://luckly.work/categories/%E8%B7%91%E6%AD%A5/">跑步 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E8%B7%AF%E7%94%B1%E4%BC%A0%E5%8F%82/">路由传参 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E8%B7%AF%E7%BA%BF/">路线 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E8%BD%AF%E4%BB%B6%E5%AE%9E%E6%96%BD/">软件实施 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E9%98%B3%E6%98%8E%E5%BF%83%E5%AD%A6/">阳明心学 (3)</a></li>
    
    <li><a href="https://luckly.work/categories/%E9%A1%B9%E7%9B%AE/">项目 (1)</a></li>
    
    <li><a href="https://luckly.work/categories/%E9%AD%85%E5%8A%9B/">魅力 (1)</a></li>
    
</ul>
    </section>

    <section class="widget">
        <h3 class="widget-title"><a href='/tags/'>标签</a></h3>
<div class="tagcloud">
    
    <a href="https://luckly.work/tags/flutter/">flutter</a>
    
    <a href="https://luckly.work/tags/IT/">IT</a>
    
    <a href="https://luckly.work/tags/Kotlin/">Kotlin</a>
    
    <a href="https://luckly.work/tags/Mysql/">Mysql</a>
    
    <a href="https://luckly.work/tags/nginx/">nginx</a>
    
    <a href="https://luckly.work/tags/Vue/">Vue</a>
    
    <a href="https://luckly.work/tags/YouTube%E8%A7%86%E9%A2%91%E4%B8%8B%E8%BD%BD/">YouTube视频下载</a>
    
    <a href="https://luckly.work/tags/android/">android</a>
    
    <a href="https://luckly.work/tags/dart/">dart</a>
    
    <a href="https://luckly.work/tags/flutter/">flutter</a>
    
    <a href="https://luckly.work/tags/gin/">gin</a>
    
    <a href="https://luckly.work/tags/git/">git</a>
    
    <a href="https://luckly.work/tags/go/">go</a>
    
    <a href="https://luckly.work/tags/gorm/">gorm</a>
    
    <a href="https://luckly.work/tags/grpc/">grpc</a>
    
    <a href="https://luckly.work/tags/html/">html</a>
    
    <a href="https://luckly.work/tags/ios/">ios</a>
    
    <a href="https://luckly.work/tags/linux/">linux</a>
    
    <a href="https://luckly.work/tags/nginx/">nginx</a>
    
    <a href="https://luckly.work/tags/python/">python</a>
    
    <a href="https://luckly.work/tags/redis/">redis</a>
    
    <a href="https://luckly.work/tags/%E4%B8%AA%E4%BA%BA%E8%B5%84%E6%96%99/">个人资料</a>
    
    <a href="https://luckly.work/tags/%E4%B9%A6%E5%8D%95/">书单</a>
    
    <a href="https://luckly.work/tags/%E4%B9%A6%E8%AF%84/">书评</a>
    
    <a href="https://luckly.work/tags/%E4%BF%A1%E6%81%AF%E7%B3%BB%E7%BB%9F%E7%AE%A1%E7%90%86%E5%B8%88/">信息系统管理师</a>
    
    <a href="https://luckly.work/tags/%E4%BF%A1%E6%81%AF%E7%B3%BB%E7%BB%9F%E9%A1%B9%E7%9B%AE%E7%AE%A1%E7%90%86%E5%B8%88/">信息系统项目管理师</a>
    
    <a href="https://luckly.work/tags/%E5%85%A5%E9%97%A8/">入门</a>
    
    <a href="https://luckly.work/tags/%E5%8E%9F%E5%88%99/">原则</a>
    
    <a href="https://luckly.work/tags/%E5%8E%9F%E7%94%9F%E9%80%9A%E8%AE%AF/">原生通讯</a>
    
    <a href="https://luckly.work/tags/%E5%9F%BA%E7%A1%80/">基础</a>
    
    <a href="https://luckly.work/tags/%E5%A4%8D%E5%88%A9%E6%95%88%E5%BA%94/">复利效应</a>
    
    <a href="https://luckly.work/tags/%E5%AE%89%E8%A3%85%E6%95%99%E7%A8%8B/">安装教程</a>
    
    <a href="https://luckly.work/tags/%E5%B0%91%E6%9C%89%E4%BA%BA%E8%B5%B0%E7%9A%84%E8%B7%AF/">少有人走的路</a>
    
    <a href="https://luckly.work/tags/%E5%BF%83%E8%AF%AD/">心语</a>
    
    <a href="https://luckly.work/tags/%E6%8F%92%E4%BB%B6/">插件</a>
    
    <a href="https://luckly.work/tags/%E6%95%99%E5%AD%A6/">教学</a>
    
    <a href="https://luckly.work/tags/%E7%8E%8B%E9%98%B3%E6%98%8E/">王阳明</a>
    
    <a href="https://luckly.work/tags/%E7%94%B5%E5%AD%90%E4%B9%A6/">电子书</a>
    
    <a href="https://luckly.work/tags/%E7%99%BB%E9%99%86%E8%A1%A8%E5%8D%95/">登陆表单</a>
    
    <a href="https://luckly.work/tags/%E7%A8%BB%E7%9B%9B%E5%92%8C%E5%A4%AB/">稻盛和夫</a>
    
    <a href="https://luckly.work/tags/%E7%A9%B7%E7%88%B8%E7%88%B8%E5%AF%8C%E7%88%B8%E7%88%B8/">穷爸爸富爸爸</a>
    
    <a href="https://luckly.work/tags/%E7%B2%BE%E8%BF%9B/">精进</a>
    
    <a href="https://luckly.work/tags/%E7%BC%96%E7%A8%8B/">编程</a>
    
    <a href="https://luckly.work/tags/%E8%99%9A%E5%B9%BB/">虚幻</a>
    
    <a href="https://luckly.work/tags/%E8%AF%97/">诗</a>
    
    <a href="https://luckly.work/tags/%E8%AF%BB%E4%B9%A6%E7%AC%94%E8%AE%B0/">读书笔记</a>
    
    <a href="https://luckly.work/tags/%E8%B4%A2%E5%8A%A1%E8%87%AA%E7%94%B1%E4%B9%8B%E8%B7%AF/">财务自由之路</a>
    
    <a href="https://luckly.work/tags/%E8%B7%91%E6%AD%A5/">跑步</a>
    
    <a href="https://luckly.work/tags/%E8%B7%AF%E7%94%B1%E4%BC%A0%E5%8F%82/">路由传参</a>
    
    <a href="https://luckly.work/tags/%E8%B7%AF%E7%BA%BF/">路线</a>
    
    <a href="https://luckly.work/tags/%E8%BD%AF%E4%BB%B6%E5%AE%9E%E6%96%BD/">软件实施</a>
    
    <a href="https://luckly.work/tags/%E9%80%9A%E8%AE%AF%E5%BD%95/">通讯录</a>
    
    <a href="https://luckly.work/tags/%E9%98%B3%E6%98%8E%E5%BF%83%E5%AD%A6/">阳明心学</a>
    
    <a href="https://luckly.work/tags/%E9%A1%B9%E7%9B%AE/">项目</a>
    
    <a href="https://luckly.work/tags/%E9%AD%85%E5%8A%9B/">魅力</a>
    
</div>
    </section>

    
<section class="widget">
    <h3 class="widget-title">友情链接</h3>
    <ul class="widget-list">
        
        <li>
            <a target="_blank" href="http://www.topgoer.com/" title="枯藤">枯藤</a>
        </li>
        
        <li>
            <a target="_blank" href="https://gorm.cn/zh_CN/docs/index.html" title="gorm">gorm</a>
        </li>
        
        <li>
            <a target="_blank" href="https://docs.python.org/zh-cn/3/tutorial/index.html" title="python">python</a>
        </li>
        
        <li>
            <a target="_blank" href="https://www.liwenzhou.com/" title="李文周">李文周的博客</a>
        </li>
        
        <li>
            <a target="_blank" href="http://www.xbzweb.com/" title="小包子的博客">小包子的博客</a>
        </li>
        
        <li>
            <a target="_blank" href="https://www.flysnow.org/" title="飞雪无情的博客">飞雪无情的博客</a>
        </li>
        
        <li>
            <a target="_blank" href="https://sliverhorn.com/" title="sliverhorn的博客">sliverhorn的博客</a>
        </li>
        
        <li>
            <a target="_blank" href="http://yuedu.baidu.com/ebook/14a722970740be1e640e9a3e" title="Android Gradle权威指南">Android Gradle权威指南</a>
        </li>
        
        <li>
            <a target="_blank" href="https://gesdh.cn/" title="小格子">格子导航</a>
        </li>
        
        <li>
            <a target="_blank" href="https://itachi.xyz/" title="阿林">itachi&#39;s Blog</a>
        </li>
        
        <li>
            <a target="_blank" href="https://darjun.github.io/" title="大俊">大俊Blog</a>
        </li>
        
        <li>
            <a target="_blank" href="https://geektutu.com/post/quick-golang.html" title="极客兔兔">极客兔兔Blog</a>
        </li>
        
        <li>
            <a target="_blank" href="http://zxfcumtcs.github.io/" title="赵雪峰">雪峰Blog</a>
        </li>
        
    </ul>
</section>


    <section class="widget">
        <h3 class="widget-title">其它</h3>
        <ul class="widget-list">
            <li><a href="https://luckly.work/index.xml">文章 RSS</a></li>
        </ul>
    </section>
</div>
            </div>
        </div>
    </div>
</body>

</html>